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      1 // RUN: %clang_cc1 -x assembler-with-cpp -E %s -o - | FileCheck -strict-whitespace -check-prefix=CHECK-Identifiers-False %s
      2 
      3 #ifndef __ASSEMBLER__
      4 #error "__ASSEMBLER__ not defined"
      5 #endif
      6 
      7 
      8 // Invalid token pasting is ok.
      9 #define A X ## .
     10 1: A
     11 // CHECK-Identifiers-False: 1: X .
     12 
     13 // Line markers are not linemarkers in .S files, they are passed through.
     14 # 321
     15 // CHECK-Identifiers-False: # 321
     16 
     17 // Unknown directives are passed through.
     18 # B C
     19 // CHECK-Identifiers-False: # B C
     20 
     21 // Unknown directives are expanded.
     22 #define D(x) BAR ## x
     23 # D(42)
     24 // CHECK-Identifiers-False: # BAR42
     25 
     26 // Unmatched quotes are permitted.
     27 2: '
     28 3: "
     29 // CHECK-Identifiers-False: 2: '
     30 // CHECK-Identifiers-False: 3: "
     31 
     32 // (balance quotes to keep editors happy): "'
     33 
     34 // Empty char literals are ok.
     35 4: ''
     36 // CHECK-Identifiers-False: 4: ''
     37 
     38 
     39 // Portions of invalid pasting should still expand as macros.
     40 // rdar://6709206
     41 #define M4 expanded
     42 #define M5() M4 ## (
     43 
     44 5: M5()
     45 // CHECK-Identifiers-False: 5: expanded (
     46 
     47 // rdar://6804322
     48 #define FOO(name)  name ## $foo
     49 6: FOO(blarg)
     50 // CHECK-Identifiers-False: 6: blarg $foo
     51 
     52 // RUN: %clang_cc1 -x assembler-with-cpp -fdollars-in-identifiers -E %s -o - | FileCheck -check-prefix=CHECK-Identifiers-True -strict-whitespace %s
     53 #define FOO(name)  name ## $foo
     54 7: FOO(blarg)
     55 // CHECK-Identifiers-True: 7: blarg$foo
     56 
     57 //
     58 #define T6() T6 #nostring
     59 #define T7(x) T7 #x
     60 8: T6()
     61 9: T7(foo)
     62 // CHECK-Identifiers-True: 8: T6 #nostring
     63 // CHECK-Identifiers-True: 9: T7 "foo"
     64 
     65 // Concatenation with period doesn't leave a space
     66 #define T8(A,B) A ## B
     67 10: T8(.,T8)
     68 // CHECK-Identifiers-True: 10: .T8
     69 
     70 // This should not crash.
     71 #define T11(a) #0
     72 11: T11(b)
     73 // CHECK-Identifiers-True: 11: #0
     74 
     75 
     76 // This should not crash
     77 // rdar://8823139
     78 # ##
     79 // CHECK-Identifiers-False: # ##
     80 
     81 #define X(a) # # # 1
     82 X(1)
     83 // CHECK-Identifiers-False: # # # 1
     84